1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31 #include "it_test_signal.h"
32
33 static const int TEST_LOOP_NUM = 4;
34 static const int TAR_STR_LEN = 12;
35
Testcase(VOID)36 static UINT32 Testcase(VOID)
37 {
38 int pipeFd[TEST_LOOP_NUM][2], ret, i; // 2, pipe return 2 file descirpter
39 int fdmax = 0;
40 struct timeval tv;
41 fd_set reads;
42 FD_ZERO(&reads);
43 tv.tv_sec = 1;
44 tv.tv_usec = 50; // 50, overtime setting
45 for (i = 0; i < TEST_LOOP_NUM; i++) {
46 ret = pipe(pipeFd[i]);
47 ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
48 fdmax = pipeFd[i][1] > fdmax ? pipeFd[i][1] : fdmax;
49 ret = write(pipeFd[i][1], "aloha world", TAR_STR_LEN);
50 printf("write first status: %d\n", ret);
51 ICUNIT_GOTO_EQUAL(ret, TAR_STR_LEN, ret, EXIT);
52 }
53 printf("next is select ...\n");
54 ret = select(fdmax + 1, &reads, NULL, NULL, &tv);
55 ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT1);
56 printf("select passed &&&&&&&&&&&&&&&&\n");
57 FD_SET(pipeFd[0][0], &reads);
58 ret = select(fdmax + 1, &reads, NULL, NULL, &tv);
59 ICUNIT_GOTO_EQUAL(ret, 1, ret, EXIT1);
60 ret = FD_ISSET(pipeFd[0][0], &reads);
61 ICUNIT_GOTO_NOT_EQUAL(ret, 0, ret, EXIT1);
62 FD_SET(pipeFd[1][0], &reads);
63 FD_SET(pipeFd[2][0], &reads); // 2, pipe return on the 2nd loop
64 FD_SET(pipeFd[3][0], &reads); // 3, pipe return on the 3rd loop
65 FD_CLR(pipeFd[3][0], &reads); // 3, pipe return on the 3rd loop
66 FD_CLR(pipeFd[2][0], &reads); // 2, pipe return on the 2nd loop
67 ret = select(fdmax + 1, &reads, NULL, NULL, &tv);
68 ICUNIT_GOTO_EQUAL(ret, 2, ret, EXIT1); // 2, expect selcet return value
69 ret = FD_ISSET(pipeFd[1][0], &reads);
70 ICUNIT_GOTO_NOT_EQUAL(ret, 0, ret, EXIT1);
71 ret = FD_ISSET(pipeFd[0][0], &reads);
72 ICUNIT_GOTO_NOT_EQUAL(ret, 0, ret, EXIT1);
73 ret = FD_ISSET(pipeFd[2][0], &reads); // 2, pipe return on the 2nd loop
74 ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT1);
75 ret = FD_ISSET(pipeFd[3][0], &reads); // 3, pipe return on the 3rd loop
76 ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT1);
77 for (i = 0; i < TEST_LOOP_NUM; i++) {
78 close(pipeFd[i][0]);
79 close(pipeFd[i][1]);
80 }
81
82 return LOS_OK;
83 EXIT1:
84 i = TEST_LOOP_NUM - 1;
85 EXIT:
86 for (i; i >= 0; i--) {
87 close(pipeFd[i][0]);
88 close(pipeFd[i][1]);
89 }
90 return LOS_NOK;
91 }
92
ItIpcFdClr001(void)93 VOID ItIpcFdClr001(void)
94 {
95 TEST_ADD_CASE(__FUNCTION__, Testcase, TEST_LIB, TEST_LIBC, TEST_LEVEL1, TEST_FUNCTION);
96 }
97